Pipes in C++

pipe.cpp

template<typename T>
class Pipe {
    T m_value;

public:
    Pipe(const T &value) : m_value(value) { /**/ }

    Pipe<T> operator |(const std::function<T(T)> &func) {
        return func(m_value);
    }

    explicit operator T() const {
        return m_value;
    }
};

/*
// Example usage:

int foo(int i) {
    return i + 3;
}

int bzr(int i) {
    return ++i;
}

int main() {
    auto pipe = Pipe(0) | foo
                        | bzr;

    int i = (int) pipe; // output: 4
}
*/